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Annual report of Captain A.A. Humphreys, topographical engineers, in charge of Office of Explorations and Surveys, War Department, December, 1858.
By: United States. - Humphreys, A. A. - Ives, J. C. - Pope, John. - Warren, G. K.
Publication info: Washington1859.
Contributed by: Library of Congress (archive.org)
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Report upon United States Geographical Surveys West of the One Hundredth Meridian /
By: Wheeler, George M. - Humphreys, A. A. - Humphreys, A. A. - Wright, Horatio Gouverneur, - Geographical Surveys West of the 100th Meridian (U.S.)
Publication info: Washington [D.C.] :G.P.O.,1875-1889.
Contributed by: University of Illinois Urbana Champaign
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